> I don't think so. I know for a fact that search terms are a minefield of gotchas and hacks caused by product decisions that reflect ad-hoc negotiations with partners and sellers. It's an unstable equilibrium of partners trying to shift attention to their products in a certain way. I think that calling this fragile equilibrium optimized has no bearing with reality.

You think a crude, unoptimised "minefield" is the route that leads to something as delicate as a "fragile equilibrium?" I don't see something as carefully balanced as your unstable equilibrium even being something that could exist without the processes involved having been refined down to a science. The only real alternative that meets your narrative would be that this is an industry that runs entirely on hope and luck (and enough human sacrifices to keep ample supplies of both on hand).